First I’m very surprised Chris didn’t say to read his site (Firewall.cx)!!
Firewall.cx is an excellent resource, period!
In response to what Chris did advise about obtaining another computer for practice is very good, to add my two cents worth on that note instead of having a physical box at hand you could also try VMWare (
) this would allow you to have a virtual network with multi platform OS’s such as Win 3.1, Linux, NT, etc..
This would allow you to help keep cost and wasted space down if that is a concern.
You can tailor make your own network as needed, its very cool and exciting software.
Download a trial and see.